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Becuase of the base pairing in DNA, the percentage of
pyrimidines in DNA is about equal to ther percentange of purines
Which of the following statements is true?
Point mutations that involve the insertion or deletion of a nucleotide change the reading frame of the genetic message
Why is it possible for an amino acid to be specified by more than one kind of codon?
there are 64 kinds of codons but only 20 amino acids
What happens during the process of translation
the cells use information from messanger RNA to produce proteins
during translation, the type of amino acid that is added to the growin polypeptide depends on the
codon on the mRNA and the anticodon on the tRNA to which the amino acid is attached
Which of the following statements is false/
The instructions for making some proteins are not specified by genes
which of the following statements is true?
DNA replication happens during the S phase of the cell cycle
What did Griffith observe when he injected a mixture of heat killed, disease causing bacteria and live harmless bacteria into the mice?
the mice developed pnemonia
What would hershey and chase have concluded if both radioactive 32 P and 35 S were found in the bacteria of their experiment?
Both of the viruses protein coat and its DNA were injected into the bacteria
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